<template>
  <div class="type-nav">
    <div class="container">
      <div @mouseleave="moveOutDiv" @mouseenter="isShow=true">
        <h2 class="all">全部商品分类</h2>
        <transition name="sort">
          <div class="sort" v-show="isShow">
          <div class="all-sort-list2" @click="toSearch">
            <div
              class="item"
              :class="{ item_on: currentIndex === index }"
              v-for="(c1, index) in categoryList"
              :key="c1.categoryId"
              @mouseenter="moveInItem(index)"
            >
              <h3>
                <!-- <a href="javascript:;" @click="$router.push({name:'search',query:{category1Id:c1.categoryId,categoryName:c1.categoryName}})">{{c1.categoryName}}</a> -->
                <!-- <router-link :to="{name:'search',query:{category1Id:c1.categoryId,categoryName:c1.categoryName}}">{{ c1.categoryName }}</router-link> -->
                <!-- <router-link
                  to="{name:'search',query:{'category1Id:C1.categoryId,categoryName:c1.categoryName'}}"
                  >{{ c1.categoryName }}</router-link> -->
                <!-- <router-link :to="{name:'search',query:{category1Id:c1.categoryId,categoryName:c1.categoryName}}">{{ c1.categoryName }}</router-link> -->
                <a href="javascript:;" :data-category1Id="c1.categoryId" :data-categoryName="c1.categoryName">{{c1.categoryName}}</a>
              </h3>
              <div class="item-list clearfix">
                <div class="subitem">
                  <dl   
                    class="fore"
                    v-for="c2 in c1.categoryChild"
                    :key="c2.categoryId"
                  >
                    <dt>
                      <!-- <router-link :to="{name:'search',query:{category2Id:c2.categoryId,categoryName:c2.categoryName}}">{{c2.categoryName}}</router-link> -->
                      <!-- <a href="javascript:;" @click="$router.push({name:'search',query:{category2Id:c2.categoryId,categoryName:c2.categoryName}})">{{ c2.categoryName }}</a> -->
                      <a href="javascript:;" :data-category2Id="c2.categoryId" :data-categoryName="c2.categoryName">{{c2.categoryName}}</a>
                    </dt>
                    <dd>
                      <em v-for="c3 in c2.categoryChild" :key="c3.categoryId">
                        <!-- <router-link :to="{name:'search',query:{catgory3Id:c3.categoryId,categoryName:c3.categoryName}}">{{c3.categoryName}}</router-link> -->
                        <!-- <a href="javascript:;" @click="$router.push({name:'search',query:{catgory3Id:c3.categoryId,categoryName:c3.categoryName}})">{{ c3.categoryName }}</a> -->
                        <a href="javascript:;" :data-category3Id="c3.categoryId" :data-categoryName="c3.categoryName">{{c3.categoryName }}</a>
                      </em>
                    </dd>
                  </dl>
                </div>
              </div>
            </div>
          </div>
        </div>
        </transition>
        
      </div>
      <nav class="nav">
        <a href="###">服装城</a>
        <a href="###">美妆馆</a>
        <a href="###">尚品汇超市</a>
        <a href="###">全球购</a>
        <a href="###">闪购</a>
        <a href="###">团购</a>
        <a href="###">有趣</a>
        <a href="###">秒杀</a>
      </nav>
    </div>
  </div>
</template>

<script>
import { mapState } from "vuex";
import _ from "lodash"
export default {
  name: "TypeNav",
  data() {
    return {
      currentIndex: -1,
      isShow:true
    };
  },
  mounted() {
    // this.getCategoryList();
    if(this.$route.path !== '/home'){
      this.isShow = false;
    }
    
  },
  methods: {
    // getCategoryList() {
    //   this.$store.dispatch("getCategoryList");
    // },

    // moveInItem(index){
    //   this.currentIndex = index
    //   console.log(index);
    // }

    // moveInItem:function(index){
    //   this.currentIndex = index
    //   console.log(index);
    // },

    moveInItem: _.throttle(function(index){
      this.currentIndex = index
      console.log(index);
    },30,{'trailing': false}),
    
    // _.throttle(renewToken, 300000, { 'trailing': false });
    //点击三级分类
    toSearch(event){
      let target = event.target //获取点击的目标元素
      let dataset = target.dataset//获取目标元素data-身上的属性和属性值组成的对象
      let {category1id,category2id,category3id,categoryname} = dataset

      if(categoryname){
         let location = {
           name:'search'
         }

         let query = {
          categoryName:categoryname
         }

         if(category1id){
           query.category1Id = category1id
         }else if(category2id){
           query.category2Id = category2id
         }else{
           query.category3Id = category3id
         }
          location.query = query

        if(this.$route.params){
          location.params = this.$route.params
        }

         this.$router.push(location)
      }
    },

    moveOutDiv(){
      this.currentIndex = -1
      if(this.$route.path !== '/home'){
        this.isShow = false
      }
    }
  },
  computed: {
    ...mapState({
      categoryList: (state) => {
        return state.home.categoryList;
      },
    }),
  },
};
</script>

<style  lang= "less" scoped>
.type-nav {
  border-bottom: 2px solid #e1251b;

  .container {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    position: relative;

    .all {
      width: 210px;
      height: 45px;
      background-color: #e1251b;
      line-height: 45px;
      text-align: center;
      color: #fff;
      font-size: 14px;
      font-weight: bold;
    }

    .nav {
      a {
        height: 45px;
        margin: 0 22px;
        line-height: 45px;
        font-size: 16px;
        color: #333;
      }
    }

    .sort {
      position: absolute;
      left: 0;
      top: 45px;
      width: 210px;
      height: 461px;
      position: absolute;
      background: #fafafa;
      z-index: 999;

      &.sort-enter{
        height: 0;
        opacity: 0;
      }

      &.sort-enter-to{
        height: 461px;
        opacity: 1;
      }

      &.sort-enter-active{
        transition: all 0.5s;
      }

      &.sort-leave{
        height: 461px;
        opacity: 1;
      }

      &.sort-leave-to{
        height: 0;
        opacity: 0;
      }

      &.sort-leave-active{
        transition: all 0.5s;
      }
      .all-sort-list2 {
        .item {
          h3 {
            line-height: 30px;
            font-size: 14px;
            font-weight: 400;
            overflow: hidden;
            padding: 0 20px;
            margin: 0;

            a {
              color: #333;
            }
          }

          .item-list {
            display: none;
            position: absolute;
            width: 734px;
            min-height: 460px;
            background: #f7f7f7;
            left: 210px;
            border: 1px solid #ddd;
            top: 0;
            z-index: 9999 !important;

            .subitem {
              float: left;
              width: 650px;
              padding: 0 4px 0 8px;

              dl {
                border-top: 1px solid #eee;
                padding: 6px 0;
                overflow: hidden;
                zoom: 1;

                &.fore {
                  border-top: 0;
                }

                dt {
                  float: left;
                  width: 54px;
                  line-height: 22px;
                  text-align: right;
                  padding: 3px 6px 0 0;
                  font-weight: 700;
                }

                dd {
                  float: left;
                  width: 555px;
                  padding: 3px 0 0;
                  overflow: hidden;

                  em {
                    float: left;
                    height: 14px;
                    line-height: 14px;
                    padding: 0 8px;
                    margin-top: 5px;
                    border-left: 1px solid #ccc;
                  }
                }
              }
            }
          }

          &.item_on {
            background-color: orange;
            .item-list {
              display: block;
            }
          }
        }
      }
    }
  }
}
</style>